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A cyclist travels down Rutledge Avenue as the rain falls July 26, 2017. File/Michael Pronzato/Staff

Grilling out over the Memorial Day weekend? Bring an umbrella — or a wet suit.

You might be lighting the coals in the middle of the first real drencher of the hurricane season.

Computer runs are suggesting that bad weather roiling up from the Caribbean Sea will spin its way to the Gulf Coast later this week, pushing heavy rain across the Southeast in front of it and maybe making landfall anywhere from Texas to the Florida panhandle.

It could turn into a tropical depression — a type of weak tropical storm.

The National Hurricane Center posted its first advisory on it Monday, saying gradual development is possible later this week.

Whatever strength the storm reaches, it will work its way into a channel of wet weather already moving up from the Gulf across the Southeast, "resulting in very heavy rains during the coming week," said meteorologist Jeff Masters of Weather Underground, a private forecasting company.

"It's looking wetter later this week toward the weekend," said meteorologist Jonathan Lamb, of the National Weather Service office in North Charleston.

The core of the storm shouldn't make it into South Carolina, Lamb said. But that's not a given.

Steering winds could wobble the storm toward the Texas coast or nudge it toward Florida and into South Carolina, said meteorologist Shea Gibson, with the Charleston-based WeatherFlow forecasting company.

"We'll have to watch it," he said.

The storm would be the second of its sort to form this month in the Gulf of Mexico, a little ahead of the June 1 official start of the hurricane season in the Atlantic basin. Rain from the first mess swept across the state last weekend, setting a daily record of 3.47 inches on Saturday.

The Hurricane Center is scheduled to post its season forecast and storm number predictions Thursday.  

Reach Bo Petersen Reporter at Facebook, @bopete on Twitter or 1-843-937-5744.

Science and environment reporter. Author of Washing Our Hands in the Clouds.